Juniper MX2020 Hardware Manual page 16

MX2020 3D Universal Edge Router Hardware Guide
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Part 2
Chapter 10
xvi
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 26: Removing Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 27: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 28: Upper/Lower Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 29: Lower Fan Tray Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 30: RE-MX2000-1800x4 CB-RE Front View . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 31: SFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Interface Modules-ADCs, MPCs, and MICs . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 32: Typical ADC Supported on the MX2020 Router . . . . . . . . . . . . . . . . . . 68
Figure 33: Typical MPC Supported on the MX2020 Router . . . . . . . . . . . . . . . . . . 69
Figure 34: MPC Installed in the MX2020 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Figure 35: MPC Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Figure 36: MX2020 Interface Port Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Power Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 37: Three-Phase Delta AC Power Distribution Module . . . . . . . . . . . . . . . . 86
Figure 38: Three-Phase Delta AC Power Distribution Module Connections . . . . . 87
Figure 39: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 40: Three-Phase Wye AC Power Distribution Module . . . . . . . . . . . . . . . . . 88
Figure 41: Three-Phase Wye AC Power Distribution Module Connections . . . . . . 89
Figure 42: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 43: Seven Feed Single Phase AC Power Distribution Module . . . . . . . . . . . 90
Figure 44: DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 45: Three-Phase Delta AC PDM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 46: Single-Phase Nine-Feed AC Power Distribution Module . . . . . . . . . . . 93
Figure 47: DC Power Distribution Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 48: DC Power Distribution Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Figure 49: DC Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Figure 50: Selecting Input Feed on the DC Power Supply Module . . . . . . . . . . . . . 98
Site Planning, Preparation, and Specifications
Planning and Preparing the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Figure 51: Airflow Through Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Figure 52: Typical Four-Post Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Figure 53: Turning Diameter of Router Transport Kit . . . . . . . . . . . . . . . . . . . . . . . 114
Figure 54: Measurements of the Router Transport Kit Installed on the MX2020
(Side View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Figure 55: Measurements of the Router Transport Kit Installed on the MX2020
(Front View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Figure 56: Connecting Chassis Grounding Points on the MX2020 Router . . . . . . 118
Figure 57: 4-AWG DC Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Figure 58: 6-AWG DC Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Figure 59: Chassis Dimensions and Clearance Requirements for the MX2020
Router with the Standard Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Figure 60: Chassis Dimensions and Clearance Requirements for the MX2020
Router with the Extended Cable Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
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